Differential motion for roving frames and the like



April 1, 1930. w. c. STEWART 1,752,708

DIFFERENTIAL MOTION FOR ROVING FRAMES AND THE LIKE Filed Sept. 6, 1929 3 Sheets-Sheet l I 3mm abtommq \N I I I I NK I I WI II I 3 M I m M I I HM QN IIIIIIII I m M HI I l 2... TM .Hl I|II\ W \P I I ul 0 I I I Ill W. W W \k II I IllIlILlIl/l I w wk J i f :5 III a 1: IH I IIII WIN/L "M M N\ I W M. RN E: 2:: I M I I IIIIIW M x April 1, 1930. w. c. STEWART I 1,752,708

DIFFERENTIAL MOTION FOP ROVING FRAMES AND THE LIKE Filed Sept. 6, 1929 5 Sheets-Sheet 2 W W Hill 3 \Qm & i

W M V m 7/ HEM/H A April 1, 1930. w. c. STEWART 1,752,708

DIFFERENTIAL MbTION FDR ROVING FRAMES AND THE LIKE Filed Sept. 6, 1929 3 Sheets-Sheet 3 l atented Apr. 1 1930 UNITED STATES PATENT OFFICE I v [W L E o. srnwanr'or eAsroNra, nonrr'roanomna," ass renon'ro EMANUEL rnonmm, or eas'ronra, nonzrn CAROLINA a DIFFERENTIAL. MOTION ron novine FRAMES AND THE LIKE Application filed SeptemberG, 1929, Serial No. 380,785. F

My invention relates to a differential motifon forroving, frames and the like, in which I have devised a special difierentialmotion for. a. special type of roving. frames.

; J Anobject ofjmy invention is to provide a diiferentialmotion for roving frames and the like, in which all parts move in the same directionbut at different'speeds to produce a proper differential in the roving frame, and the; driving of the parts of the roving frame and the bobbin, shafts which form'a part of the roving frame.

,A'nother object of imparted" to the bobbin shafts withthe minimum amount of losso-f energy in accomplishing this result. V

, Another object of my invention is to pro- ..zo vide a differential motion for roving frames,

in. which all of the moving partsmove in the same direction atjdifferent speeds so as to procure the properspeed for the bobbin shafts with the minimum, amount of power being a 26 wasted in obtaining the result.

Another object; of my invention is to provide adifi'erential motion for roving frames, .in which all of the moving vparts move in the same direction at different speeds so as to A to procure the proper speed for the bobbin shafts with the minimum amount of power being wasted in obtaining this result, together with means for lubricating the various parts of the machineand retaining the lubricant within '36 thedifferential housing while the same is being operated.

Another object of my invention is to provide a differential motion for roving frames having means for retaining the lubricant 40 therein but allowing air to escape therefrom.

It is a well known fact that when alubricant is placed in a differential motion for roving frames with the parts therein moving at relatively high speeds that the lubricant becomes to a certain extent emulsified, and

heretofore it has been impossible to procure a a. type of mechanism which wouldretain the lubricant within the gear casing, but would throw the lubricant all around the machine and soil the floors and also throw thelubriplied thereto the line22 in Figure 3; o

view; showing one-half of the sleeve memcant onto. the textile material which is being":

operated in the factory to the great damage which is free to move and which has the minimum amount of friction and also which retain'sthe lubricant therein. I

Some of the objectsof my invention having been stated other objects will appear as to the description proceeds, when takenin coni ,nectionwith the accompanying drawings, in my inventionis to provide a differential. motion for roving frames j 5 by means of which the desired speed maybe which- I Figure 1 15.21, slcle elevation of one end of a rov ng frame showing my invention as ap- .65

Figure 2 isa longitudinal cross-sectional view taken through my differential motion for roving frames and the like, and is taken along Figure is a cross-sectional view taken alongthe line 3 -3 in Figure 2;

Figure; 4.11s. a longitudinal cross-sectional her-126' a .75

I Figure '5. is a longitudinal cross-sectional ,view of a portion of the cover portion 45 and uthesleeve 46,;

Figure 6 is a longitudinalcross-sectional --viewuzofe a portion of the sleeve 50 and the disk 32; t i

' Figure? is a longitudinal cross-sectional view showing a portion of the sleeve 38 and the casing37 and; the gear 39. 7

:Referring more specifically to thedrawings the numeral 16 indicates a, support for the cone pulleys in'a; roving frame, and the reference characterll indicates a supportfor the other end: of -the, pulleys. These cone pulleys are mounted on the shafts 12 and 13, the

shaft. 12having. thereon the. cone pulley 14 which is supported at one end. by the member 10l'and .atthe other endbythe member .11, and this shaft extends into the head end of the -frame which isdesignated by the reference character 15-, and there has the gear for drivthe front rolls,-said :gear not being shown but being behind or inside the member 15.

The cone pulley 16 is mounted on the shaft 13, and below the shaft. 13. is. the shaft :17

which has the arms 18 and 19 thereon, and in the free ends of these arms the shaft 13 is mounted on which the cone pulley 16 is fixedly soured. The end of the shaft 13 has secured thereon the gear 20 which meshes with the gear 21 on shaft 17 andon the end of shaft 17 is mounted the gear 22 which said gear 22 meshingwith gear 23 which gear in turn meshes with another outer gear 24, and

the gear 24meshes with the gear 25 which is fixedly secured on the sleeve 26 carrying the spur gear 27. This spur gear 27 meshes a plurality of pinions 28, 29 and 30 mounted on suitable pins, such as 31 on the disk 32 and also on this disk 32 are three larger pinions 33, 34 and 35, said outerpinions being adapted to mesh with the internal gear 36 on the shell 37 said shell having a sleeve portion 38 which extends outwardly and has mounted thereonthe gear 39 onwhich a chain belt or other suitable driving mechanism 40 is mounted, and the other end of this chain belt 40 is secured on the bobbin shaft 41 which in turn has secured thereon the gear 42 which mesheswith the gear 43 on the other bobbin shaft 44. The pinions 28,29 and 30 not only mesh with the spur gear 27 but also mesh with the large pinions 33, 34 and 35.

r The shell 37 that has the internal gear 36 on the inside thereof has the cover portion 45,

n which has the sleeve portion 46 integral therewith, covering the sleeve portion 26. This 1 cover portion is adapted to be secured to shell portion 37 by means of suitable screws .49. The gear 25 has the enlarged portion 47 with the set'screw 48 therein by means of which the gear 25 is secured to thesleeve 26.

i The disk 32 has the sleeve portion 50 which :is fixedly secured to the shaft 51 by means of to the set screws 52 which penetrates the"en- ,1arged portion 53 on the sleeve 50. This 1 shaft 51 is known as the main driving shaft.

The main driving shaft 51 has secured thereon the spur gear 55, which is adapted to :mesh with the idling gear 56 which is mounted on the pivotally mounted arm 57, which is adapted to swing on the shaft 12 and this gear 56 is adapted to mesh with the. gear 58 belt 63 whic which is fixedlysecured onshaft 12. I

The main drive shaft 51 has secured thereon the split pulleys 60 and 61 by means of which movement. is imparted to the shaft 51 from that end as well as from the end nearest the cone pulley through the gears 22 to 25 inelusive.

The cone pulleys have mounted thereon the is adjusted in position by means of the belt rack 64 which is conventional in roving frames.

The sleeve portion 46 has a pluralit of spirally disposed grooves 65 therein, w ich are adapted to feed the lubricant contained within the :housing back into the housing and to prevent its escape therefrom. The inside of the sleeve 26 likewise has a spiral groove 66 the shaft 51.

The pinions 33, "34 and 35 are rotatably mounted .on the pins 33*, 34 and 35 which are secured in the disk 32 in the same manner as pin 31.

The method of operation of the differential motion isas follows:

The drive shaft 51 is partially driven by a suitable source of power, this drive shaft 51 has the sleeve 50 and the disk32 fixedlysecured thereon to rotate therewith. The pinions 33, 34 and 35 which are mounted on the disk 32 mesh with the internal gear 36 in the shell 37, and also mesh with the smaller pin- 7:

ions 28, 29 and 30. The rotation of disk 32 with drive shaft 31 and the meshing of the pinions with the internal gear 36 has a tendency to more the shell 37 on which is mounted the gear 39 at a certain speed, and at the .17 same time the gear 25 which is fixedly mount ed on sleeve 26 is driven by the cone pulleys 14 and 15 throughthe mechanism which has been described, and this turns the spur gear 27 which is integral with sleeve 26 and which spur gear meshes with the pinions 28, 29 and 30, and causes these pinions to move in the same direction in which they are already movmg, and this means that all parts in the mechanism are moving in the same direction, but" -ow1ng to the fact that we have two sources of driving power, namely the shaft 51 and the gear 26 thedi-iference in speedof the two driving mechanisms give a resultant to the gear 39, and this resultant is the result of the difl'erence in speed between the cone pulley mechanism and the drive shaft 51, and it might be added that the speed of the cone pulley is regu lated by the cone rack 64 controlling the position of cone belt 63 on the cone pulleys 14 and 16.

In the drawings and specification I have set forth a preferred embodiment of my invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limltation, the scope of the invention being set forth in the appended claims.

1. In a differential motion for roving frames and the like, the drive shaft, a sleeve fixedly secured onsaid drive shaft and having a disk integral therewith, asecond sleeve rotatably mounted on the first sleeve and having a housing integral therewith, a gear I as wheel on said second sleeve, a cover member adapted to be secured to the said housing, a

sleeve portion integral with said cover member, a fourth sleeve member slidably mounted on the shaft and projecting into the gear housing through the sleeve which is integral with the cover member, a gear secured on the said fourth sleeve, a plurality of pinions mounted on the disk secured to the said second sleeve, said pinions being adapted to mesh with the spur gear on the fourth sleeve, an internal gear in said housing, a plurality of other pinions mounted on the disk which is integral with the second sleeve, said pinions being adapted to mesh with said internal gear and also mesh with the first named pina second sleeve mounted on said first sleeve and having a disk member integral therewith, a third sleeve mounted on the said drive shaft and having a disk integral therewith on which a plurality of pinions are mounted, a portion of said pinions being adapted to mesh with the spur gear, a plurality of other pinions mounted on said lastmentioned disk, a housing fixedly secured to the disk on the second sleeve, an internal gear in said housing with which the last named pinions are adapted to mesh, said last named pinions being also adapted to mesh with the pinions which mesh with the spur gear, said housing having a sleeve integral therewith, a gear on said last mentioned sleeve, said last named gear being adapted to be suitably connected to the bobbin shaft of a roving frame.

3. 1 In a differential motion for roving frames and the like, a drive shaft, a housing, a sleeve integral with said housing and having a gear fixedly secured thereon with suitable driving connections between said gear and the bobbin shaft of a roving frame, a spur gear on said sleeve, a cover for said housing, a sleeve integral with said cover, another sleeve rotatably mounted on the drive shaft within the sleeve projecting from the cover member, a gear on the sleeve rotatably mounted on the drive shaft, gear connections between said gear'and the cone pulleys of a roving frame, a sleeve fixedly secured to the drive shaft and having a disk integral therewith, a plurality of pinions mounted on said disk and being adapted to mesh with the spur gear, an internal gear in said housing, a plurality of other pinions mounted on said disk and being adapted to mesh with the first named pinions and alsowith the said internal gear.

4. In a differential motion for roving frames and the like, a housing, a sleeve mounted within the housing and having a disk supported by said sleeve within the housing, an internal gear in said housing, a

sleeve and spur gear mounted within the housing and projecting outwardly from said housing, a gear mounted on the last named sleeve, a plurality of pinions mounted on the disk which is integral with one of the sleeves, a portion of said pinions being adapted to mesh both with the spur gear and other pinions, and the other pinions being adapted to mesh with the internal gear in the housing.

In testimony whereof I aflix my signature.

WALTER C. STEWART. 

